| HEAD COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| HEAD DIAMETER | 0.770 INCHES NOMINAL |
| HEAD HEIGHT | 0.124 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK KEYED |
| KEY PROJECTION LENGTH | 0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A276 OR ASTM A580/A580M ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 430 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT,BLIND RIVET,COUNTERSUNK HEAD,INTERNAL THREAD,NON-LOCKING(FREE-RUNNING) AND SELF-LOCKING(PREVAILING TORQUE) |
| NOMINAL THREAD SIZE | 0.3750 INCHES |
| NUT DIAMETER | 0.486 INCHES MINIMUM AND 0.490 INCHES MAXIMUM |
| NUT LENGTH | 1.547 INCHES MINIMUM AND 1.577 INCHES MAXIMUM |
| NUT STYLE | BLIND RIVET W/SMOOTH ROUND SHANK |
| SHANK END TYPE | CLOSED |
| SPECIFICATION/STANDARD DATA | 80205-NAS1330 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2700,METHOD 1,CLASS 4 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES | UNF |